TY - JOUR AU - Brewer,Jedidiah AU - Glennon,Robert AU - Ker,Alan AU - Libecap,Gary D. TI - Water Markets in the West: Prices, Trading, and Contractual Forms JF - National Bureau of Economic Research Working Paper Series VL - No. 13002 PY - 2007 Y2 - March 2007 UR - http://www.nber.org/papers/w13002 L1 - http://www.nber.org/papers/w13002.pdf N1 - Author contact info: Jedidiah Brewer Department of Economics University of Arizona, Tucson Robert Glennon Rogers College of Law University of Arizona, Tucson Alan Ker Department of Agricultural and Resource Economics University of Arizona, Tucson Gary D. Libecap Bren School of Environmental Science and Management and Economics Department University of California, Santa Barbara Bren Hall 4412 Santa Barbara, CA 93106-5131 Tel: 805-893-8611 Fax: 805-893-7612 E-Mail: glibecap@bren.ucsb.edu AB - Rising urban and environmental demand for water has created growing pressure to re-allocate water from traditional agricultural uses. The evolution of water markets has been more complicated than those for other resources. In this paper, we first explain these differences by examining water rights and regulatory issues. Second, we place our research in the context of the economics literature on water marketing. Third, we present new, comprehensive data on prices and the extent, nature, and timing of water transfers across 12 western states from 1987-2005. We find that prices are higher for agriculture-to-urban trades versus within-agriculture trades, in part, reflecting the differences in marginal values between the two uses. Prices for urban use are also growing relative to agricultural use. Markets are responding in that the number of agriculture-to-urban transactions is rising, whereas the number of agriculture-to-agriculture transfers is not. Further, there is a shift from using short-term leases to using multi-year leases of water and permanent sales of water rights. This pattern underscores the need to consider the amounts of water obligated over time, rather than examining only annual flows in assessing the quantities of water traded as is the common practice in the literature. Considering water obligated over time, termed committed water, we find significantly more is transferred and the direction of trading is different than if the focus is on annual flows. Finally, the data reveal considerable variation in water trading across the states. ER -